slocum



(No Model.) 2 Sheets-Sheet 1.

G. H. SLOGUM. PERPORATING ATTACHMENT FOB PRINTING PRBSSES.

Patented June 16,1891.

\MI H 55555 (No Mbdel.) 2 Sheets-Sheet 2.

' G. H.v SLOGUM.

PERFORATING' ATTACHMENT FOR PRINTING PRESSES.

No. 454,231. Patented June 16, 1891.

INN-F R UNITED STATES PATENT OFFICE.

GRANT H. SLOCUM, OF OARO, MICHIGAN, ASSIGNOR OF ONE-HALF TO TIMOTHY C.QUINN, OF SAME PLACE.

PERFO RATI NG ATTACH M ENT FOR PRI NTING=PRESSES.

SPECIFICATION forming part of Letters Patent No. 454,231, dated June 16,1891.

Application filed August 11, 1890. Serial No. 361,624. (No model.)

To all whom it may concern.-

Be it known that I, GRANT H. SLOOUM, a citizen of the United States,residing at Caro, in the county of Tnscola and State of Michigan, haveinvented certain new and useful Improvements in Perforating Attachmentsfor Printing-Presses; and I do declare the following to be a full,clear, and exact description of theinvention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

This invention relates to new and useful improvements in perforatingattachments for printing-presses; and it consists in a certainconstruction and arrangement of parts whereby the perforating may beaccomplished simultaneously with the printing and in such manner as notto smut or blur the printing. The perforator is secured in the bed ofthe press, and its toothed blade is adapted to be projected for thepurpose of perforating by contact of the actuating-lever of theperforator with a pin set in the platen of the press as the bed andplaten are brought together in the operation of printing, the perforatorbeing provided with a spring that returns the toothed blade below thesurface of the type as the bed and platen rock apart, so that theinking-rollers will not be cut and injured by the teeth of said bladewhen passing over the face of the type.

The novel features of the device lie in the employment of an outer andan inner case, the inner case being slidingly coupled to the outer caseand having means for detachably perforating. Fig. 3 is a side elevationof the perforator. Fig. 4 is a View of Fig. 3 with one side of the outercase removed, showing the inner case containing the perforatingblade inits normal position. Fig. 5 is aview of Fig. 4, showing the perforatingblade raised. Fig. 6 is a side elevation of the inner case, showing asection of the perforating-blade removed therefrom. Fig. '7 is atransverse section on dotted line 1 1 of Fig. 6. Fig. 8 is a transversesection on dotted line 2 2 of Fig. 6.

Referring to the letters and figures of reference, A indicates theplaten of the common press, and B the bed thereof.

The improved perforator is composed of an outer and an inner case, theouter case inclosing the inner case and the inner case containing theperforating blade. The outer case is composed of two side plates 0 andthe dividing-rail E, said plates being secured to the dividing-rail, oneon each side thereof, by means of screws or rivets s. The inner case iscomposed of two plates D D, secured together by the screws e, as shownin Figs. 7 and 8. The inner face of the plate Dis provided with theshoulder u, which forms an opening 0 between the adjacent faces of theplates D D when placed together, as clearly shown in Fig. 7, in whichopening the perforating blade F is set, as clearly shown in Fig. 8 andwhich may be firmly secured therein by means of the screws 6, which drawsaid plates tightly together upon said blade. The plates D D, formingthe inner case and carrying the perforating-blade, are set in the outercase between the adjacent faces of the plates 0 and are secured thereinby the pins 0, that are secured to the plate 0 and pass through theinclined slots 1' in the plates D D. (Clearly shown in Figs. 4 and5.) Bythis means the inner case while secured in the outer case is permittedtorise and fall obliquely therein.

t 25 indicate steel tumblers, the upper ends of which lie in bearings 12in the under edge of the inner case and their lower ends inlike'bearings in the dividing-rail E. These tumblers support the innercase and rock or [co oscillate as said case rises and falls.

It indicates an elbow-lever pivoted at s between the ends of the platesC of the outer case. The inner end of said lever bears against the endof the inner case and is adapted to actuate said case to project theperforating-blade therein,as shown in Fig. 5.

Z) indicates a spring secured at one end of the rail E, its free endlying in the inclined recess f in the under edge of the inner case, bymeans of which the inner case is returned to the position shown in Fig.4when relieved by the lever h.

The perforator is adapted to be keyed in the chase with the type II andseeuredin the bed of the press, and is actuated by contact of the leverh with a pin on, set in the platen of the press, as the bed and platenare brought together in the act of printing, as shown in Figs. 1. and 2.As the pin on strikes the outer end of the lever 71, the inner endthereof is brought against the end of the inner case, carrying said easeupward, riding on the tumblers t t, and guided by the pins 0, travelingin the inclined slots 27, whereby the perforating-blade is projectedabove the surface of the type, causing the teeth a thereof to enter andperforate the paper simultaneously with the printing. I'Vhen the pin onreleases the lever 7L after the impression, the spring (Z, secured inthe end of the rail E and bearing upward on the outer end of said lever,will throw said outer end of the lever upward, drawing the inner endthereof from contact with the end of the inner case, when the spring I)will force said case down, carrying the teeth a of the perforating-bladebelow the surface of the type, so as not to injure the inking-rollerswhen passing over the surface thereof.

As there is a slight end motion to the action of the perforating-blade,it is necessary that said blade shall remain stationary during theoperation of perforating, or while the paper remains in contacttherewith, to avoid drawing the paper and blurring the printed matter.To accomplish this the end of the inner easeisprovided withthe concave vand the end of the actuating-lever h with therounded portion '11,adapted to be received therein, the arrangement of parts being such thatthe perforating-blade is raised to its maximum height before the papercomes in contact therewith. Then as the impression is made the end 2 ofthe lever 7L slips past the lower corner 3 of the inner case, the end rof said lever sliding in the concave. This imparts a slight lost motionto the lever 72. and permits the outer end thereof to be still furtherdepressed during the operation of printing without moving theperforating-blade, but at the same time securely retaining said blade inplace, as clearly shown by dotted lines in Fig. 5. By this means. also,the perforatingblade is held after the impression until the paper iswithdrawn from the teeth thereof, when the lever 71, relieves the innercase and the spring I) returns the perforating-blade to the positionshown in Fig. 4:. It will be seen on looking at Fig. 5 that when theperforating-blade is raised to its maximum height the tumblers t t standslightly past the vertical center, in which position they form a solidbase to withstand the pressure of the press when making the impressionand perforating the work. It will also be seen on looking at Fig. (3that the perforating-blade is made in sections, of which there maybe twoor more, and which are secured to the inner case be tween the plates D Dby the screws 6, as before described. This is a very important feature,as the blade may then be made with much less cost, and in perforatingshort work but one section of the blade may be used and permits theblade to be readily removed and sharpened, and in case of injury to theblade the injured section may be readily removed and a new one quicklyreplaced. The openings 6 through the plate 0 of the outer case permitaccess to the screws 6, so that the perforating-blade or any portionthereof may be removed without removing the inner case.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a perforating device, the combination of the outer case, the innercase located slidingly therein, and the perforatin g-blade detachablysecured to the inner case, substantially as specified.

2. In a perforating device, the combination of the outer case having anopening through the side thereof, the inner case carrying aperforating-blade, and a screw passing 7 through said case fordetachably securing said blade thereto, the inner case being located inthe outer case, so that said screw in the inner case will register withthe opening in the side of the outer case, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

GRANT II. SLOCUM.

\Vitnesses:

ED. STREETER, II. J. GRAHAM.

